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Title: Fabrication of High Current YBa 2Cu 3O(sub>7-y) Coated Conductors Using Rolling-Assisted Biaxially Textured Substrates

Abstract

High critical current YBa 2Cu 3O 7-y (referred to as YBCO) coated conductors were fabricated with a layer sequence of YBCO/YSZ/CeO 2/Ni. The cube (100) texture in the starting Ni substrates was obtained by cold rolling followed by recrystallization. A thin CeO 2 (Cerium Oxide) layer with a thickness of 100-200 Å was grown epitaxially on the biaxially textured-Ni substrates using an e-beam evaporation technique. This was followed by the growth of a thick (<= 0.77 µm) YSZ (Yttria Stabilized Zirconia) layer using either e-beam evaporation or rf magnetron sputtering. The e-beam CeO 2 film had a dense microstructure. The microstructure of the e-beam YSZ film was porous whereas the sputtered YSZ film was dense. The YBCO films were grown by pulsed laser deposition on both e-beam and sputtered YSZ layers. A transport critical current density of ~ 1 x l0 6 A/cm 2 at 77 K was obtained for ~ 0.8 µm thick YBCO Rims on both YSZ surfaces in zero field. To demonstrate the quality and compatibility of the e-beam CeO 2 layers; YBCO films were also grown on CeO 2-buffered YSZ (100) single crystal substrates using e-beam co-evaporated Y-BaF 2-Cu precursors followed by a post-annealing process. Amore » transport critical current density of over 1 x lO 6A/cm 2 at 77 K was obtained on a ~ 0.3 µm thick YBCO film in zero field.« less

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EE); USDOE Office of Science (SC); USDOE Office of Utility Technologies
OSTI Identifier:
9292
Report Number(s):
ORNL/CP-103819
KC 02 03 01 0; EB 50 01 00 0; ON: DE00009292
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: 9th CIMTEC-World Forum on New Materials, Florence, Italy, June 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; Fabrication; High-Tc Superconductors; Yttrium Compounds; Barium Compounds; Copper Oxides; Superconducting Films; Energy Beam Deposition; Sputtering; Substrates

Citation Formats

Christen, D K, Feenstra, R, Kroeger, D M, Lee, D F, List, F A, Martin, P M, Norton, D P, Paranthaman, M, Park, C, Royal, A, Specht, E D, and Verebelyi, D T. Fabrication of High Current YBa2Cu3O(sub>7-y) Coated Conductors Using Rolling-Assisted Biaxially Textured Substrates. United States: N. p., 1999. Web.
Christen, D K, Feenstra, R, Kroeger, D M, Lee, D F, List, F A, Martin, P M, Norton, D P, Paranthaman, M, Park, C, Royal, A, Specht, E D, & Verebelyi, D T. Fabrication of High Current YBa2Cu3O(sub>7-y) Coated Conductors Using Rolling-Assisted Biaxially Textured Substrates. United States.
Christen, D K, Feenstra, R, Kroeger, D M, Lee, D F, List, F A, Martin, P M, Norton, D P, Paranthaman, M, Park, C, Royal, A, Specht, E D, and Verebelyi, D T. Tue . "Fabrication of High Current YBa2Cu3O(sub>7-y) Coated Conductors Using Rolling-Assisted Biaxially Textured Substrates". United States. https://www.osti.gov/servlets/purl/9292.
@article{osti_9292,
title = {Fabrication of High Current YBa2Cu3O(sub>7-y) Coated Conductors Using Rolling-Assisted Biaxially Textured Substrates},
author = {Christen, D K and Feenstra, R and Kroeger, D M and Lee, D F and List, F A and Martin, P M and Norton, D P and Paranthaman, M and Park, C and Royal, A and Specht, E D and Verebelyi, D T},
abstractNote = {High critical current YBa2Cu3O7-y (referred to as YBCO) coated conductors were fabricated with a layer sequence of YBCO/YSZ/CeO2/Ni. The cube (100) texture in the starting Ni substrates was obtained by cold rolling followed by recrystallization. A thin CeO2 (Cerium Oxide) layer with a thickness of 100-200 Å was grown epitaxially on the biaxially textured-Ni substrates using an e-beam evaporation technique. This was followed by the growth of a thick (<= 0.77 µm) YSZ (Yttria Stabilized Zirconia) layer using either e-beam evaporation or rf magnetron sputtering. The e-beam CeO2 film had a dense microstructure. The microstructure of the e-beam YSZ film was porous whereas the sputtered YSZ film was dense. The YBCO films were grown by pulsed laser deposition on both e-beam and sputtered YSZ layers. A transport critical current density of ~ 1 x l06 A/cm2 at 77 K was obtained for ~ 0.8 µm thick YBCO Rims on both YSZ surfaces in zero field. To demonstrate the quality and compatibility of the e-beam CeO2 layers; YBCO films were also grown on CeO2-buffered YSZ (100) single crystal substrates using e-beam co-evaporated Y-BaF2-Cu precursors followed by a post-annealing process. A transport critical current density of over 1 x lO6A/cm2 at 77 K was obtained on a ~ 0.3 µm thick YBCO film in zero field.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {6}
}

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